HTML Gallery Output error.

I am trying to output a folder of photos into an html web gallery and getting an error.

Web Gallery Output Error: I get an error when I try and do an HTML Gallery from CS6 Bridge on Windows 7 64bit. After hanging on "generating html for several minutes I get the following error.

"An error occurred in a bridge extension. JavaScript Error (Auto-Stack Panorama/HDR:3042): Internal error."

I am using  Bridge CS (Version 5.0.1.23 64bit).

Windows 7. 64BIT on a PC.

The error occurs on large and small batches. Preview and Save commands.

Any help to get this working would be very welcome. I have rebooted to get a clean run of bridge with same results.

Thank you so much,

Clarke